Home / 785,846.12-1,178,856.22-280,525.16

Finding the Fourth Proportional to 785,846.12, 1,178,856.22 and 280,525.16

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Solution

The fourth proportional to 785,846.12, 1,178,856.22 and 280,525.16 is: 420,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,846.12 : 1,178,856.22 = 280,525.16 : x
  2. Step 2: Convert to fraction form
    785,846.12/1,178,856.22 = 280,525.16/x
  3. Step 3: Cross multiply
    785,846.12x = 1,178,856.22 × 280,525.16
  4. Step 4: Simplify right side
    785,846.12x = 330,698,829,732.50
  5. Step 5: Solve for x
    x = 330,698,829,732.50/785,846.12
  6. Step 6: Final answer
    x = 420,818.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.